Android-GridView填充问题

Question

我在一个应用程序上工作，在那里我加载一个图像到GridView中…我现在的问题是，当我使用imageView.setPadding(10,10,10,10)时，它在HTC Hero上运行良好，但在摩托罗拉Droid的情况下，它们相互重叠……如何使填充对所有移动设备通用...这是我的代码..

package com.android.sampleDesign1;
import android.content.Context;
import android.text.Layout;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;

public class TicTacToeAdapter extends BaseAdapter {

public ImageView imageView;

private Context mContext;
private Integer mThumbIds = R.drawable.images;    

private Integer image;

public TicTacToeAdapter(Context c) {
    mContext = c;

}

public int getCount() {
    return 9;
}

public Object getItem(int position) {
    return position;
}

public long getItemId(int position) {
    return position;
}



public View getView(int position, View convertView, ViewGroup parent) {    
    image = mThumbIds;  

    if (convertView == null) {
        imageView = new ImageView(mContext);
        imageView.setLayoutParams(new GridView.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        imageView.setImageResource(image);             
        imageView.setPadding(10,10,10,10);          

     } else {
        imageView = (ImageView) convertView;           
        imageView.setImageResource(image);          
    }               
    return imageView;
  }   

}   

我还尝试使用

int w = gridView.getWidth(); int myViewWidth = Math.round(W * .12f);

我还试着用

LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT);

lp.setMargins(left, top, right, bottom);

imageView.setLayoutParams(lp);

那么有没有其他方法可以做到..或者我哪里错了..。帮帮我..。

提前谢谢。

Answer 1

而不是在pixels中定义填充，您需要在dips (密度无关像素)中定义它，然后在运行时将dips转换为pixels。

所以你需要做一些类似的事情

private static final float PADDING_IN_DP = 10.0f; // 1 dip = 1 pixel on an MDPI device
private final int mPaddingInPixels;

public TicTacToeAdapter(Context context) {
    ....
    // Convert the dps to pixels
    final float scale = context.getResources().getDisplayMetrics().density;
    mPaddingInPixels = (int) (PADDING_IN_DP * scale + 0.5f);
}

...
public View getView(int position, View convertView, ViewGroup parent) { 
    ...
    if (convertView == null) {
        ...
        imageView.setPadding(mPaddingInPixels, mPaddingInPixels, mPaddingInPixels, mPaddingInPixels);
    }
    ...
}
...

你在构造函数中得到的scale会根据你的应用程序运行的设备的屏幕密度而有所不同。

(注：dip和dp是一回事)